Dataset: KOSMOS14 DMSPO Concentrations

Name: Concentrations of DMS, DMSPp, DMSPd, & DMSOd in relation to ocean acidification [H+] during the KOSMOS 2014 mesocosm experiment off Gran Canaria
Published: 2019-06-03
Keywords: oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.769302.1

Spatial Extent: N:27.928 E:-15.365 S:27.928 W:-15.365

Temporal Extent: 2014-09-23 - 2014-11-25

Project:

Ocean Acidification: Influence of Ocean Acidification on Biotic Controls of DMS Emissions (OA on DMS)

Principal Investigator:

Stephen D. Archer (Bigelow Laboratory for Ocean Sciences)

Co-Principal Investigator:

Peter Countway (Bigelow Laboratory for Ocean Sciences)

Patricia A. Matrai (Bigelow Laboratory for Ocean Sciences)

Contact:

Stephen D. Archer (Bigelow Laboratory for Ocean Sciences)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2019-06-03

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Concentrations of DMS, DMSPp, DMSPd, & DMSOd in relation to ocean acidification [H+] during the KOSMOS 2014 mesocosm experiment off Gran Canaria

Abstract:

Concentrations of DMS, DMSPp, DMSPd, & DMSOd in relation to ocean acidification [H+] during the KOSMOS 2014 mesocosm experiment off Gran Canaria. The full experiment took place from 23rd September to 25th November 2014.

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2019-06-03	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.769302.1	2019-06-27

Methods & Sampling

From Archer et al. (2018): The mesocosm experiment was conducted in Gando Bay, on the east coast of Gran Canaria (27° 55' 41" N, 15° 21' 55" W) in the subtropical North Atlantic. Sample processing, analysis and further experiments were conducted in the laboratories of Plataforma Oceánica de Canarias (PLOCAN), Gran Canaria. The full experiment took place from 23rd September to 25th November 2014. The design and deployment of the Kiel Off-Shore Mesocosms for future Ocean Simulations (KOSMOS) facility has previously been described in detail (Riebesell et al., 2013).

Sampling and analytical procedures: The experimental set-up and sampling of the mesocosms is described in Taucher et al. (2017).

Procedures for the analysis of reduced sulfur compounds was based on purge-and-cryotrap approaches linked to a gas chromatograph with either flame FPD or mass spectrometric detector and is described in Archer et al. (2018).

Quantification of dissolved DMSO [DMSOd] closely followed the protocol of del Valle et al. (2007) and is reported in Archer et al. (2018).

Additional data from the experiment has been deposited on the PANGEA database: https://www.pangaea.de/?q=KOSMOS_2014

Data Processing Description

As described in Archer et al. (2018), [H+] was calculated from pH on the total scale (pHT) calculated from TA and DIC in CO2SYS (Pierrot et al., 2006) using the carbonate dissociation constants K1 and K2 of Lueker et al. (2000). On each sampling day, total alkalinity (TA) was measured using a potentiometric titration approach and dissolved inorganic carbon (DIC) by infrared absorption as described in Taucher et al., (2017).

Problem Report:
Note, a leak was detected in mesocsom M6 on Experimental Day 27. No further sampling was undertaken from that mesocosm.
Note, DMSOd was quantified over only the first phase of the experiment T-3 to T25.

BCO-DMO Processing:
- deleted empty columns;
- modified parameter names (removed brackets (special characters); replaced spaces w/ underscores; renamed [H+] to "proton_conc");
- filled in blanks with "nd" (no data);
- reformatted date to yyyymmdd (was mm/dd/yy).

Data Files

File
KOSMOS14_DMSPO_CONCS.csv (Comma Separated Values (.csv), 11.75 KB) MD5:ef83431844148836acb80ddffeac00fc Primary data file for dataset ID 769302

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1316133

Deployments

None available yet

Instruments

Gas Chromatograph

Supplied Name: gas chromatograph

Supplied Description:

Procedures for the analysis of reduced sulfur compounds was based on purge-and-cryotrap approaches linked to a gas chromatograph with either flame FPD or mass spectrometric detector.

Instrument Type

Generic Name: Gas Chromatograph

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB02/

Generic Description:

Instrument separating gases, volatile substances, or substances dissolved in a volatile solvent by transporting an inert gas through a column packed with a sorbent to a detector for assay. (from SeaDataNet, BODC)

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
Date	Date; format: yyyymmdd	unitless	date
DMS	Seawater DMS concentration	nanomoles per liter (nmol L-1)	DMS
DMSOd	Dissolved DMSO concentration	nanomoles per liter (nmol L-1)	no_bcodmo_term
DMSPd	Dissolved DMSP concentration	nanomoles per liter (nmol L-1)	DMSP
DMSPp	Particulate DMSP concentration	nanomoles per liter (nmol L-1)	DMSP
Experimental_Day	Experimental day	unitless	time_elapsed
Mesocosm	Mesocosm identifier	unitless	sample_descrip
Proton_Conc	Proton concentration [H+]	nanomoles per liter (nmol L-1)	no_bcodmo_term